-
- دوشنبه تا شنبه: 10:00 - 16:00 / یکشنبه تعطیل است
ash and quarry dusts are partially replaced in concrete up to 50% means it improve the strength of the fly ash concrete and also this is one of the way to detect the problems placed in construction side lack of raw materials (TABLES 1-8). Material and Methods Super plasticizer
به خواندن ادامه دهید
International Journal of Engineering Research & Technology (IJERT) IJERTIJERT. ISSN: 2278-0181. IJERTV3IS060257. 1038. ... Therefore, three local quarry dusts of limestone and basalt were used. Different pastes and mortars were prepared with different QD contents (4, 8, 12 and 16 mass, %). In
به خواندن ادامه دهید
Abstract. This research study presents the strength variations of concrete when replacing fine aggregate by quarry dust and cement by fly ash from 0%, 20%, 30%, 40% and 50% in step by step. For this study M25 grade of concrete are …
به خواندن ادامه دهید
We investigated the impact of several quarry dusts or back fillers as well as of selected treated by-products such as blast furnace slag, finely ground waste gypsum boards, or recycled concrete ...
به خواندن ادامه دهید
Quarry dusts are considered as one of the wellaccepted as well as cost effective ground improvement for the stabilization of weak soil deposits. When quarry dust is added with expansive soil it is expected that it will make it more porous, less durable, reduce cohesion etc, and also quarry dust has rough, sharp and angular particles and as such ...
به خواندن ادامه دهید
Connect With Us. AJRCCM. AJRCCM Home; Current Issue; Articles in Press; Archive; ATS Conf. Abstracts
به خواندن ادامه دهید
Typical quarry dusts have coarser grading than the two ground materials; the lowest volume of voids was detected for the Plešovice quarry dust blended with portland cement and blast furnace slag from Třinec. ... Journal of Materials in Civil Engineering, 22 (2010), pp. 667-673, 10.1061/(asce)mt.1943-5533.0000064.
به خواندن ادامه دهید
Official Publications of the American Thoracic Society. Sign In . Individual Login Institutional Login
به خواندن ادامه دهید
Based on this, this study attempts to study the effects of quarry dust addition on the strength characteristics of concrete and to assess the rate of compressive strength development for …
به خواندن ادامه دهید
Abstract: Toxic metals in quarry dusts have caused different health challenges to quarry workers and communities. Therefore, metal distribution and risk in humans linked to toxic-metal …
به خواندن ادامه دهید
The usage of plentiful raw discarded resources in the manufacturing of concrete has proven to be a sustainable and environmentally beneficial method of making concrete for a variety of purposes. In this study, the physical and mechanical properties of concrete made by partially and fully substituting fine aggregates and ordinary Portland cement with periwinkle shell ash …
به خواندن ادامه دهید
Quarry dusts are considered as one of the well accepted as well as cost effective ground improvement technique for weak soil deposits. ... Onyelowe Ken C.,2012 has stated in ARPN Journal of Earth ...
به خواندن ادامه دهید
"Sputum Cytology and Blood Level of Some Heavy Metals in Subjects Exposed to Quarry, Wood and Rice Dusts in Abakaliki, Ebsonyi State, Nigeria," International Journal of Research and Innovation in Applied Science, International Journal of Research and Innovation in Applied Science (IJRIAS), vol. 9(10), pages 431-441, October.
به خواندن ادامه دهید
Official Publications of the American Thoracic Society. Sign In. Register
به خواندن ادامه دهید
Quarry dusts, like dusts in general, affect vegetation by both physical and chemical processes. Physically, dust may cover the leaf surface and reduce the amount of light available for ...
به خواندن ادامه دهید
Wazo hill quarry is located at Tegeta approximately 25km from the Dar-es-salaam city Centre. The quarry is located between latitude -60 34' south and longitude 390 23' 0and 39 25' east which is nearly 100m above the sea level. The quarry is dealing with the mining activities such as drilling, blasting,
به خواندن ادامه دهید
The bulk generation of quarry dust (QD) from quarries, aggregates, and decorative stone plants, is a serious environmental issue. However, QD has the potential to provide eco …
به خواندن ادامه دهید
IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-ISSN: 2278-1684,p-ISSN: 2320-334X, Volume 12, Issue 6 Ver. V (Nov. - Dec. 2015), PP 104-110 ... Quarry dusts are considered as one of the well accepted as well as cost effective ground improvement technique for weak soil deposits. They provide the primary function of reinforcement and
به خواندن ادامه دهید
Abstract. Background: The relationship between cardiovascular diseases and rise in occupational dust have been known for more than a decade. Objective: To assess the impact of quarry dust on the blood pressure parameters of quarry workers in Abakaliki metropolis. Methods: 200 subjects participated in this study. 100 quarry workers (test group) and 100 non-quarry …
به خواندن ادامه دهید
IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-ISSN: 2278-1684,p-ISSN: 2320-334X, Volume 14, Issue 1 Ver. IV (Jan. - Feb. 2017), PP 21-26 ... laterite – quarry dusts blocks as well as help reduce the cost and effort expended in conducting trial mix. II. Materials And Method The materials used for this work are:
به خواندن ادامه دهید
The quarry dust can be used to know the compressive and tensile strength of the stabilized soil. The effect of quarry dust on the stability of soil-aggregate mix used in a base course and summarizes that the quality of quarry dusts in a soil=aggregate mix has a major influence on maximum density, strength, frost resistance and drainage. CONCLUSIONS
به خواندن ادامه دهید
Quarry dusts are considered as one of the well accepted as well as cost effective ground improvement technique for weak soil deposits. ... International Journal of Innovative Technology and ...
به خواندن ادامه دهید
World Journal of Engineering Research and Tec hnology . WJERT. . ISSN 2454-695X . Review Article . SJIF Impact Factor: 5.924 ... Quarry dusts, like dusts in general, affect ...
به خواندن ادامه دهید
Contribute to legaojm/m development by creating an account on GitHub.
به خواندن ادامه دهید
The exposure to respirable crystalline silica found in granite dust presents significant health hazards to quarry workers and nearby communities, including silicosis and various respiratory ailments. This study evaluates the efficacy of various pollution control measures implemented in granite quarries. It aimed to provide a comprehensive critical …
به خواندن ادامه دهید
JETIR2204648 Journal of Emerging Technologies and Innovative Research (JETIR) g318 Partial Replacement of Fine Aggregate with ... Red earth and quarry dusts showed good prospect as alternative to the use of river sand in sandcrete …
به خواندن ادامه دهید
International Journal of Engineering Research & Technology (IJERT) ISSN: 2278-0181 Vol. 3 Issue 6, June - 2014 Effect of Fine Materials in Local Quarry Dusts of Limestone and Basalt on the Properties of Portland Cement Pastes and Mortars Magdy A. Abdelaziz 1, Saleh Abd El-Aleem2 and Wagih M. Menshawy3 1 2 Prof.,Civil Dep., Faculty of Engineering, Fayoum …
به خواندن ادامه دهید
IJIRT 148804 INTERNATIONAL JOURNAL OF INNOVATIVE RESEARCH IN TECHNOLOGY 147 Experimental Investigation on Strength Properties of Sand by Partial Replacement of Ceramic Waste and Quarry Dust in Concrete S.Priyadarshika1, M.Rajkannan2 1PG student (structural ... quarry dusts are sieved until the fine aggregates was achieved is close to sand fine ...
به خواندن ادامه دهید
Quarry Dust Mixtures. Saudi J Civ Eng, 7(6): 137-145. 137 Saudi Journal of Civil Engineering Abbreviated Key Title: Saudi J Civ Eng ISSN 2523-2657 (Print) |ISSN 2523-2231 (Online) ... Quarry dusts are primarily made up of an excessive amount of fines that were generated
به خواندن ادامه دهید
To evaluate the effects of quarry dusts on the electrocardiogram of quarry workers in Abakaliki metropolis, quarry workers within the age of 18 to 65 years were recruited. Associations between high level of occupational dust and cardiovascular diseases have been known for more than half a century.To evaluate the effects of quarry dusts on the electrocardiogram of quarry workers in …
به خواندن ادامه دهید
gic data indicate that there are occupational hazards associated with stone crushing and inhalation of stone dust. Quarrying/stone crushing is increasingly becoming the main stay of …
به خواندن ادامه دهید
Journal of Osteoporosis and Physical Activity, Issn: 2329-9509 volumeS2 Journal of Pediatric Neurology and Medicine ... Effects of Quarry Dusts on the Electrocardiogram of Quarry Workers in Abakaliki Metropolis, PHYSIOTHERAPY 2020, Bangkok, Thailand, August 10-11, 2020, pp: 0-1. Author: Srinubabu Gedela Created Date:
به خواندن ادامه دهید